Classic Clad


Zola’s Classic Clad line of windows and doors offers thermal performance that far exceed most domestic windows.  This line is an excellent choice for energy-efficient projects that are not seeking the highest levels of performance, but still appreciate the beauty and durability of a fine, custom-crafted window.  Featuring a 68mm deep frame and double glazing.




glazing layers


low-E coatings


% of visible light transmitted



number of seals


expected service life in years

"I've been most impressed with our whole Zola experience from sales, ordering and now to delivery and on-site support. Congratulations on assembling such a professional team and making what is typically a complicated and challenging process run so smoothly. As a self-styled 'window aficionado' I can't tell you how happy that makes me."

Bronwyn Barry, One Sky Homes

"Everyone who comes to check the place out is stunned by the lift slide door."

Tim Burke, Olympic Biathlete

"The windows and doors are performing fantastically. The other day I was in the house when it was 10 degrees. The sun was pouring through our south glass and it was a comfy 70 degrees inside with no other heat running."

Tim Burke, Olympic Biathlete

"Zola provides an excellent product and support for the Passive House Community. The best part, they make a daunting process simple. Love the support after installation, this is a sign of a sure winner."

Rick Milburn, Passiv Works

"Working with Zola Windows has been a stunningly positive experience. Zola offers vastly superior service and responsiveness over any other window provider I have worked with. The price is feasible, the windows are stunning, and the performance is everything a Certified Passive House consultant could hope for, not to mention the color options that come standard, it's enough to make an architect's heart sing…"

Tessa Smith, Artisans Group

"We have had a terrific experience with Zola Windows. Our latest Passive House project in Santa Fe, NM called for custom color on all windows with one picture window being exceptionally large. The windows arrived on time, on budget and the client loves the color! We highly recommend Zola's on-site service call. Zola sent an technician and with his expertise the windows and exterior doors were set quickly and passed the Blower Door Test with a 0.4 @ 50 Pascal. We highly recommend the product and the company and look forward to working with them more in the future. In our opinion, the price and performance are unbeatable."

Vahid Mojarrab, Wamo Studio

"We used the Zola ThermoPlus Clad line, because it offers the best performance to price ratio, and the clients love real wood windows. You can see the European craftsmanship, feel how solid they are, and their triple gaskets provide excellent air tightness."

Joaquin Karcher, Zero E Design

"These windows clearly have the engineering, quality, and performance that is far superior to any North American brand we have seen thus far."

Chris Price, Park City Design + Build

"Every person who has seen these windows is utterly dumbstruck that a window could move like that. It will be an easy sell for our future projects."

Chris Price, Park City Design + Build

"We had four issues to contend with on this project while searching for the perfect window – NYC Landmarks approvals, Passive House standards, cost and beauty. Most windows can achieve two out of these four requirements but finding a window that met all proved to be a challenge. Zola was the only one that met the challenge[...]."

Gita Nandan, thread collective

"We love tilt-turn windows! And we are very happy that they are finally getting traction in the states. The versatility of the tilt-turn in is really important, allowing for a wide variety of options for air flow. Clients are not opposed to them – in the past it has been a lack of access to windows that offer this option."

Gita Nandan, thread collective

"The ThermoPlus triple-glazed clad wood [were among my favorite products], for the durable clad exteriors and beautiful wood interiors, the exceptional energy performance, the ability to provide very large sizes, and the competitive pricing."

Jeff Stern, In Situ Architecture

"The tilt-turn windows are the best — they’re versatile and function well for every need. …We love the fact that we can open them to get a breeze without having a window swung into the house. They’re also a point of interest for our guests, many of whom have never seen tilt-turn windows and think it’s a brilliant idea, as do we."

Stephanie Farris, homeowner

"We love our Zola windows…that really is the truth…we cannot buy windows that have this quality for this price made in the States and we think they add great value to the project."

Laura Nettleton, Thoughtful Balance

"I have used tilt turn windows for almost 20 years and I enjoy the air flow that you get through a home by the tilt feature. This provides a wonderful convection air stream and most owners are amazed at the tilt swing option of the doors."

Jarrod Denton, Signum Architecture

"Zola windows are the first windows we’ve ever had that we can sit in front of in the winter and not feel cold, even when it’s -15 degrees outside. Our friends have serious 'window envy' when they see our Zola windows and doors."

Susie Crane, homeowner

"It’s important to have a supplier that responds to issues and changes during installation. The Zola tech support team was always available and offered excellent support even after installation. The windows and doors are beautiful. The hardware is incredible. The Breeze Panel bi-folds for large openings operate with ease."

Rick Robertson, Six Degrees Construction

""I have to say, Zola did a great job on Laura & Robert’s windows and doors. They are very well made, and were exactly as specified for both dimension and function. As you know, their performance is a key reason that their house required - no - heating last winter, and that was a cold one.""

Louis Mackall, Architect

"I had heard of Zola windows before my purchase, and had even seen them in a home, but the beauty and craftsmanship of my new windows is truly beyond my expectations. They are unique in operation, and add a surprising dimension to a home. The [Zola] team is both professional and friendly, and facilitated a seamless purchase and delivery. For a high performance window Zola is the best!"

Jim Nietmann

"Beautiful windows, easy to work with, high quality, pleasure installing them in our wall panel system. Thank you for making the install a quick and easy process! It was great to work with Zola (Marc and Florian!) Easy to ask questions, always quick to respond; even through multiple revisions. We really enjoyed the process, and working with you guys. Thank you!"

Dave Levasseur, Bensonwood

"In 2011 CASL began working with Zola to source windows that would help us meet the rigorous Passive House standards at our project home. The staff at Zola was incredibly generous with their time and expertise and the windows are beautiful! With support from Zola, CASL completed the installation of our windows in April of 2013 and they are a showpiece of the house! They are the first thing people comment on and a highlight of our tour of the home. Students, neighbors and designers collectively 'ahhhh' when we demonstrate the tilt-turn feature and are impressed with how beautiful the wood is. Additionally, the windows perform; they have made the house warm in winter, cooler on hot spring days and unbelievable quiet inside. Thanks to Zola for their generosity and being part of the CASL story!"

Rebecca Seward, University of Oregon-CASL

"We are absolutely in love with the way our windows turned out. It is a joy to visit the site and be inspired by the artistry of the windows. They are the most noticeable feature of the house and serve as functional sculpture, just the way I hoped they would. Thank you for all the help you gave us in the decision-making stage."

Elaine and Ned Griffin, Homeowners

"The essence of the home is the connection between the architecture and the landscape, which allows natural light and fresh air deep into each space. The home's large windows and movable walls facilitate this connection and make it a place where the rhythms of the day are felt and the benefits of natural lighting and natural ventilation minimize the home's environmental impact. The solidity of the windows and doors, made possible by the oak frames and triple pane panels, enhances the durability of the home and give it a permanence that is essential to any notion of sustainability."

Mark Gillem, The Urban Collaborative

A selection of Zola Classic Clad projects:


Dual high performance Glass

European dual glazing keeps you warm and your home quiet.

Classic Clad comes standard with a high performance European double glass and warm edge spacers. This R-5 glass features great clarity, one low-E coating, and a 1" overall glass package thickness. While even the standard glass is highly sound proof (31dB), Classic Clad can be upgraded for additional sound and break in protection.


fully adjustable hardware

Available as a tilt & turn window, as well as Lift-Slide, French and entry doors, Thermo Clad Valueline comes with fully adjustable hardware sets for the perfect fit and lasting operation. Concealed hinges and child-lock hardware is also available upon request.


Wood Craftsmanship

Wood Craftsmanship

Classic Clad is a solid performer that combines careful wood selection, design and craftsmanship to create rich and luxurious window and door frames. This product line is available in standard 100% FSC-certified Pine, with optional Oak and Meranti woods.

Outstanding Durability

durable aluminum

To protect your investment, the Classic Clad engages the outstanding durability and longevity of aluminum cladding, together with rainscreen cladding to shield the wood from the elements.

Cladding Styles

broad range of cladding choices

Classic Clad is the window of choice for personal expression. With a wide range of cladding styles to choose from, including 16 standard colors and 300 custom color options, Classic Clad complements the expressive and unique project.

Superior Service

best in class service

With all Zola windows and doors, we offer best in class service with full construction detailing and installation assistance. With Classic Clad, Zola's superior service provides the peace of mind for your investment in luxury European windows.



fully adjustable hardware

Available as a tilt & turn window, as well as Lift-Slide, French and entry doors, Thermo Clad Valueline comes with fully adjustable hardware sets for the perfect fit and lasting operation. Concealed hinges and child-lock hardware is also available upon request.



For the quiet interior sought by most luxury projects, the Classic Clad offers soundproofing options up to 47 dB.

Solid Energy Performance

solid energy performer

Classic Clad maintains a leading edge against similar wood-framed windows, with R-5 glass standard in an industry-leading 18mm spacer thickness. Overall U-values are as low as 0.21 BTU/hr.sqft as tested by an independent lab. In addition, the line includes a triple gasket system for an air- and weather-tight seal, plus an additional gasket in the rain screen cladding.

Highest VT Values

let the light in

Zola's Classic Clad line has a visible light transmittance (VT) value of 80%, outperforming the competition, and in a class of its own when compared to standard American windows.

Enabling Design

Zolini Handles

Custom cast bronze handles you can design

Besides our standard and upgraded handles, you can order your windows with Italian hand-made, solid bronze Zolini handles. The ultimate in luxury, these handles can be made per your custom design and finished in oil-rubbed bronze and antique bronze. We can also hand plate your handles with silver.

Stain and Paint

Stain and paint options to fit your design

All units come fully finished with stain or solid paint. Zola is proud to offer Zola NakedTM Wood, our proprietary finish that looks and feels like untreated wood while being fully protected (shown, pine on top and oak below). Beyond this, a wide range of stain colors is available, and if you prefer a solid paint, you can make your selection from over three hundred shades.

Our woods

Our woods make our windows

Careful wood selection is paramount to making a great window. We use pine, fir, larch, European white oak, meranti (asian mahogany) and sapele (african mahogany) to make our windows. All our European woods are dense grain, northern species. Each frame is made out of three to four laminations of wood for unsurpassed durability, fit and finish.

Explore our options:

Hardware options

Zola offers a wide selection of hardware options to match your style. Our standard handles are aluminum handles with a metallic finish of your choice. Many customers upgrade to our modern stainless steel handle or our timeless chrome handle. For the very finest selection, consider our Zolini handles. These hand crafted handles are made in Italy, of finest Bronze cast in a traditional mold. Designs span from classic to modern, and finishes can be rubbed (a customer favorite), plated in real silver, or aged. The Zolini designs shown here are only a small selection of what is available. In fact, you can even design your own handles and we create a mold for you.

Hinge options

Zola strongly recommends concealed (hidden) hinges for tilt&turn windows. If 180 degrees of opening angle are required, we need to use classic hinges with a plastic hinge cap. For very large openings, typically over 28sqft, a heavy duty hinge system ,as shown, is required. This hinge does not utilize hinge caps and is crafted from metal in a modern design, available in silver only.

On doors, we typically use three to four hinges, hinge caps allow you to adjust the color to match your decor. Stainless steel hinges or hidden hinges for doors are available on request.

Divided lites and simulated divided lites

Zola offer a wide variety of simulated and actual divided lites. True divided lites separate the glass. Simulated divided lites do not actually divide the glass, but are a glued on bar on the inside and outside (in the case of an aluminum clad window, it would be an aluminum profile on the outside and a wood profile from the inside) as well as a spacerbar between the glass panes, giving the illusion of a true divided lite. This is the most common option. Note that in some high altitude locations and window sizes the spacer bars have to be omitted.

Divided lites, whether true or simulated,  add significant cost to your window package, depending on frequency and layout. Cost increases of 30% are not uncommon. Consider using less or no divided lites and enjoy an uninterrupted view out of your window. A lower cost alternative is to use stick on bars (same as divided lite bars but without the spacer) or dividing bars solely between the glass panes, however, these solutions do not look as good as true or simulated divided lites.

Cladding styles
Cladding colors

For the aluminum cladding on your windows, Zola offers many standard or optional color choices. In addition to the colors shown, any of over 300 RAL colors can be realized. Our customers especially enjoy the anthracite colors in optional price group 1 – the matte, yet slightly sparkling appearance looks great in varying light conditions.

Wood species

Zola offers a wide selection of fine woods for your window and door package. Many of them come standard with 100% FSC ® certification (FSC-C112130). Ask about our FSC® availability. For upgraded wood options, we offer Larch, Meranti, European Oak and Sapele. If you have custom wood needs, please contact our team.


wood species


wood species
Wood stains

Zola ships all windows fully finished, either stained or painted. This way, we can make sure to protect every nook and cranny, as we spray in a temperature controlled booth prior to installing hardware, cladding or glass. The result is a superior, even and highly durable finish. If you choose to have your windows painted, you can select any RAL color or submit a chip for a custom color. For stains, please select any of Zola’s beautiful water based stains below. We especially recommend the Zola Naked TM stain for a matte, unfinished look that offers full protection.


For Tilt & Turn windows, we recommend our snap in, aluminum framed screens.  The frame will be color matched to your cladding (it is shown in white in the picture for clarity), and the corners are miter cut and precision jointed, eliminating plastic connectors that break easily.  The screen is easy to remove in winter from the inside. Seen from the inside, the screen frame does not impede on the glass area, except in the Panoramic View line of windows. For the screen mesh we use Phifer UltraVue, the clearest mesh we can find on the market today.


For single or double swing doors we recommend either our roll-to-the -side or pleated screen system. The pleated system is more expensive, but preferred by most customers, because the threshold added to guide the screen is only approximately 5/16″ high, and the look matches the lift slide pleated screen better.  Because either system stashes to the side, you never need to see the screen mesh when you don’t need it, which makes these screens much more desirable than a screen door.


For Lift and Slide doors we can also offer our factory fitted rolling screen frames. These frames are the size of a door panel, and roll over the fixed part of the sliding door when not in use. The screen mesh is Phifer Ultravue, the clearest mesh we can find on the market today. If you prefer to not see your screen mesh unless it is in use, we instead recommend our pleated or electrically operated roll down screen detailed below.


The pleated screen system for Lift and Slide doors, BreezepanelTM folding wall systems, and large swing doors. This pleated screen can be up to 11′ high, and stows in a small pocket to the side. Up to 16′ of screen can disappear into one side, allowing for a total of 32′ of opening if screens are stowed both to the left and right. These screens are fitted by our technicians after install. Purchase of a Zola Tech service visit with your window package is required if you opt for these screens. Smaller lift slide or Breezepanel openings that are up to 8′ high and 10′ wide are shipped pre-mounted and feature a low profile, 5/16″ threshold.


The electrically operated, Zola roll down screen provides utmost luxury and flexibility. The screen can be up to 10’6″ high and 15′ wide, and the frame pieces will be color matched to your window.  When ordered at the time of placing your window order, these screens can be installed on your window units at the factory (please note that oversized doors that ship as knock-down kits may require partial assembly of the screen system as well).

Safety Glazing

Safety glazing refers to glass that minimizes bodily injury in the case of breakage. This can be achieved by either tempering glass, or laminating glass. Tempered glass is incredibly strong, and if it breaks, breaks into thousands of small crumbles. A good example of tempered glass are the side windows of a car. Laminated glass consists of several sheets of glass, glued togehter with a plastic film in between. If broken, it shatters but stays in place (think windshield of a car). As a standard, Zola recommends and uses tempered glass where required. In a safety glass package, all panes must be tempered or laminated.

Sound proofing

Your home should be your sanctuary. Our high quality, European-manufactured glass and triple sealed frames provide a level of sound dampening of outdoor noise pollution that is exceptional on the North American market. Noise mitigation is particularly important inbuildings near busy streets or highways, train stations, and airports. Whether you are concerned with minor sound dampening or you live in an urban environment where the highest acoustical performance is required, we are sure to have a glass solution that fits your needs.

We use asymmetrical glass assemblies containing one or more laminated glass panes to tailor the sound dampening to your needs.


Security in windows and doors against break ins requires strong hardware and burglar resistant glass. Even our standard multi point locking packages are no match for most thieves, but we can upgrade your window packages with even more locking points and highly crowbar resistant interlocking hardware assemblies at a low upcharge. Glazing can also be customized to prevent break ins and many types are tested to withstand specific tools or even firearms.

Privacy glass

Please find our selection of privacy glass options below. Custom designs in matte glass are also available. Please note that not all privacy glass options are available in oversized glass.

download our option selection worksheet

Download CAD details, install details and certifications:

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